The fourth exciting investigation for the Invisible Detective.
Time's running out . . .
London, today: A pocket watch that seems to rewind itself leads the gang to investigate a strange clock shop. Why are the shop's customers so strange? How are events linked to a shipwreck in Cornwall? Only the Invisible Detective can find out . . .
But while on holiday in the Cornwall of today, Arthur Drake's past life is catching up with him. The ghosts of sailors shipwrecked over a century ago are coming to call . . . but what do they want?
London, 1936: The Invisible Detective can solve any mystery, great or small - but no one's ever seen his face. Truth is, the detective is the creation of four extraordinary kids who combat crime in his name . . .